Lost in a sea of spots, little Patch longs to stand out from the other puppies and dreams of being a "One Of A Kind Wonder Dog" like his favorite TV star, Thunderbolt. When Patch accidentally gets separated from his family, he takes the opportunity to meet his hero and, miraculously, finds himself in the real-life role of Thunderbolt's sidekick. Meanwhile, Cruella has become a patron of the arts after discovering the spotty paintings of an eccentric new artist named Lars. To inspire him, she kidnaps all of the other Dalmatian puppies. Together, Patch and Thunderbolt have to figure out a way to save the day, and, through his own acts of heroism, Patch discovers that he truly is one-of-a-kind.